BiFeO3–PbZrO3–PbTiO3 ternary system for high Curie temperature piezoceramics

High curie temperature ternary piezoelectric ceramics

A preferred piezoelectric ceramic material is a BiFeO3—PbZrO3—PbTiO3 ternary solid solution wherein proportions of the constituent perovskite metal oxides are selected so that the material exhibits relatively high Curie temperatures above 380° C. and useful piezoelectric properties. Disciplines Ceramic Materials This patent is available at Iowa State University Digital Repository: http://lib.dr...

High Curie temperature BiInO3-PbTiO3 films.

High Curie temperaturepiezoelectricthin films of xBiInO3-(1-x)PbTiO3 (x = 0.10, 0.15, 0.20, and 0.25) were prepared by pulsed laser deposition. It was found that the tetragonality of films decreased with increasing BI content. The dielectric constant and transverse piezoelectric coefficient (e31,f ) exhibit the highest values of 665 and -13.6 C/m2 at x = 0.20. Rayleigh analyses were performed t...

Transport Spin Polarization of High-Curie Temperature MnBi Films

Curie temperature of multiphase nanostructures

Piezoelectricity above the Curie temperature? Combining flexoelectricity and functional grading to enable high-temperature electromechanical coupling

functional grading to enable high-temperature electromechanical coupling R. Mbarki, N. Baccam, Kaushik Dayal, and P. Sharma Department of Mechanical Engineering, University of Houston, Houston, Texas 77204, USA Department of Mathematics, Southwestern University, Georgetown, Texas 78626, USA Department of Civil and Environmental Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 1...